document.write( "Question 335677: Hello!\r
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document.write( "An experienced accountant can balance the books twice as fast as a new accountant. Working together it takes the accountants 6 hours. How long would it take the experienced accountant working alone?\r
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document.write( "Thanks!\r
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Algebra.Com's Answer #240748 by jrfrunner(365)![]() ![]() You can put this solution on YOUR website! An experienced accountant can balance the books twice as fast as a new accountant. Working together it takes the accountants 6 hours. How long would it take the experienced accountant working alone? \n" ); document.write( "--- \n" ); document.write( "Let E=time taken by experienced accountant \n" ); document.write( "Let N=time taken by new accountant \n" ); document.write( "-- \n" ); document.write( "Given: An experienced accountant can balance the books twice as fast as a new accountant. \n" ); document.write( "Therefore N=2*E or E=N/2 \n" ); document.write( "-- \n" ); document.write( "Let 1/N = proportion of job completed by New accountant in \"one\" hour \n" ); document.write( "Let 1/E = proportion of job completed by Experienced accountant in \"one\" hour \n" ); document.write( "--- \n" ); document.write( "\"Every\" hour working \"together\" they will accomplish \n" ); document.write( " \n" ); document.write( "since the job takes 6 hours for both working together then \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "--- \n" ); document.write( "Solve for E \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "9/E=1 \n" ); document.write( "E=9 hours \n" ); document.write( " \n" ); document.write( " |